| 摘要 |
<p>The invention concerns a variable light transmission device (100), comprising an assembly of at least two superposed optical filters (110, 120) each comprising a pair of superposed optical cells (111, 112, 121, 122), each optical cell comprising a layer of a mixture (115, 116, 125, 126) comprising a host material made from liquid crystal (17) and at least one dichroic guest material (18).</p> |
